Self-cleaning oil-gage.



N. F. TLLERY.

SELF CLEANING OIL GAGE.

APPLICATION FILED MAH. 26. |918.

Patented Aug. 27; 1918.

fies.

R. my. m M mcd/1 JA f f@ ,n .M QW m f y. f

m-Lmw.. wAsumcmN. D. c,

UNITED srATE-s'rArENT @M10130A NoArf F. TILLERY, or HUivrAivsvInLE, Missoula;

SELF-CLEANING OVILGAGE,

VSpecification of Letters Patent. l Patented Aug. 27, 19,118.

Ailiplication led March 26, 1918i. Serial No. 224,724.

To aZZ 'whom it may concern:

Be it known that I, NOAH F. TiLLnnY,

a citizen of the United States, residing atk Huniansville, in the county of Polkv and State of Missouri, have inventedl a new and useful Self-Cleaning Oil-Gage, of which the following is a specification. Y

My invention relates to self-cleaiiing oilV gages, which are. employed -in connection` with inclosed machine bearingsV and cas` ings to indicate the presence of lubricating oil. f

It is known that oil gages are frequently inoperative through the stoppage of` the communicating passages by dirt, impurities,

f and sediment incident to Waste involved in lubricated bearings. In such a case, the oil in the gage remains stationaryand indicates oil in the bearings, regardless of dry-bearings. Y Y Y The object of my invention is to provide a cheap, durable aiiddependable oil gage and provided with facility for self-cleaning,

so that the gageshall indicate t-lie true levels Y' of the oil in the bearing casing.

I attain this obj ect by means ofthe mechanisin illustrated inthe accompanyingr drawing in which Y Figure 1, is an elevation of'an oil gage embodying my invention; Fig. 2, is a se@ tional view of the saine, taken onthe line" V-V in Fig. l; Fig. 3, is an elevation of The gage I have invented consists of theY supporting member 1,:the holder member 2, and the glass tube 3, and which, combined with the mechanism hereafter described, forms my invention. The supporting memvber and likewise the holder member, is preferably made of brass. The supporting member combines an integral nipple 4, having screw threads on its end portion adapted for a screw connection with a bearing casing, notV shown.` The upper portion of the supporting member is bored out adjacent to the plane of the passage-way in the nipple toform a cup portion 5, having a diameter adapted to receive the lowerend portion of the holder member, and the cup lportion is 'provided' with internal screw A hole 6, is bored centrally downthreads. Y wardly through the bottoni of the fcup and continuing entirely through the member, in suoli a manner that it communicates with the passage-way in the nipple, thereby forming an inlet passage-way 7, to the gage and an outlet S, lthe latter being provided with internal screw threads adapted to receive the screw end of a pet-cock 10, which servesy to drain the passage-ways 7 and S, and like` wise passage way 9, in the nipple. The opposite sides of the nipple 'are formed flat" in vertical direction and adapted for receiv-. ing the Jaws of a monkeywrench, as shownv at 11, inFig. 1. The upper and lower end portions of the holder Aare formed cylindrical, the lower portion 12, is tubular andrpro'-` vided with external screw threads adaptedv to engage the internal threads inthe upper portion of the member 1, to seat the holder 0n the bottom of the cupportion 5. `The upper end portion of the holder is formed like a cap, through the top of which a hole 1, g 13, is apertured, to substantially register with the imier end of passage way 7, in

ymember 1. Ribs 14, are formed integral` with the upper and lower portions of the holder 2, and extend verticallyof the latter.y

Theinner sides of the yribs are formed conj cave and the outer sides thereof are conveXed, as is shown in Fig. l6.l The tubeB, is madeofglass andv very transparent, so that the oil in the tube maybe readily seen. The tube is removably lodged in the holder and, whenrthe parts are operatively assemf bled and the gage organized, the lower edge of theftube will be seated on the bottom of `the cup portion 5, and its upper end will.'y

bear on the inner side of thecap portion of the holder 2, the tube then coininunicatico ing. with the passage `ways 7, y8 and 9. kA plunger l5, comprising a tubular rod .16,`-

and a piston 17, integral therewith, .atl its lower end and a detachable button 1S, which is screwed on its upper end, as shown at 19, in Fig. 2, is inserted in the tube 3, so that the rod 16, shall pass through the hole 13, in the holder, and extend thereabove asuitable distance. A compression spring, prefiiovrk erably a coiled spring or spiral spring 20,

is arranged in the tube, below the piston 17, n

to normally hold the plunger in an elevated' position, as shown in F ig. 1. A liner ork packing 21, made of felt, leather, rubber, orf.y

other suitable material, preferably felt isl mounted on the periphery" of the piston, in sueh a manner that it shall impinge upon the inner side of the tube. A cleaner 22, is vmounted on the upper r'portion of the plunger rod and bowed downwardly and bent to lie parallel with the4 tube 3. 'A

brushio, is attached to the lower end ot the Y leg of the cleaner attachment and made to impinge on the tube, the said leg being made of spring metal, the brush is'held firmly on the tubel bythe tensioning of the leg. A

cushion or" rubber or -washer may be placed the spring 20, and in this action, the iinger lof the hand is placed lirmly over the `rent 2l, at the top of the plunger rod. The piston acts to force the oil to ilow baci; into the casing thereby disturbing the deposits of obstructive matter lodgedin the passages 'Tand 9. When the plunger isr released, the 'reaction ot the spring 20, which vat this time is at maximum tension, Jforces the plunger back to normal oosition 'at the same time the oil is dra *fn from the casing into the gage. Re-

! peated operations of the plunger will effect of theinterior Wall thereof.

ai cleaning of the passages and dislodge obstructive materials therein; VAlter these operations the matter may beVdi-awn'otl' through the pet-cool;v inthe usual manner.l At the time theplunger is operated to Aclean outl the passages, the elt'ring Lonthe-piston in contaetiyith the tube, effects a cleaning At the same time, the brush 23, is carried by the plunger" up and'dou'n the outer side of the tube, eifecting a cleaning or' its exterior." The simultaneous cleaning of the passages and tube assures greater visibility and reliable gagev indications. f `Having described my invention what claim is-k 7 1. A self-cleaning oil gage, consisting of a Copies of this patent may be robtained for bei", a plunger having i.

supporting member, a holder member detaeliablyrrsecuredpon said supporting member,`a'transparent tube arranged in said liolderaiul vseated in said supporting memf piston on its lower end proiided With a pliable packing ring fitted in saidV tube and adapted to slide therein', anda spring arranged in said tube and adapted to hold said plunger normally elevated. l. w f 1 2. self-cleaning loil gage, Vconsisting of a `supporting member, a holder member detach-ably secured on said supporting inember, af transparent tube arranged in said holder and seated iiisaid supporting member, a plunger-haring a piston on 'its lower end piovidedm'ith: ai pliable packing iing iitted in sai-d tube and adapted to slide therein', a spring yarranged in said tube and adapted to'y hold-said plunger normally elevated, and a brush carried by said plunger and slidably engaging the exterior side of said tube. 3; lnV an oil gage having a transparent indicating tube, the combination of a plunger morably arranged in the tube, said plunger comprising -af piston-having a ring olv yielding material; secured on its peripheral fa'ce'and` in engagement with-the inner side of the tube and a rod extending upwardly i '.1 1k o i Ytromsaid piston through and beyond the uwer end of the O`ae` said rod having a b t? a rent communic'atinglwithv the tube belen* the piston`,"a'nd'a :spring arranged in `thetube andadapted t0 'hold said plunger,normally elevated-.#7

et.: lnan oil-gage having a transparent indicating tube, the combination of la plunger i moyablyarranged in the tube, said 'plunger comprising a pistoirhavinga ring or yielding`r material secured on its peripheral -Aface an'dfii vengagement with the inner side eff the 'tube anda ro'd extending upwardly from said piston through and beyond the upper end of the gage, said rod having a rent communicating-With the tube belo'ivl the piston, aspring arranged-1n' the tube and adapted i to hold said plunger normally elevated, and

a brush lcarried bysaid plunger and slidably engaging the outer side or the tube.A

yKansas Gity,'Missouri, March 19, 1918.

` NOAH F. TILLERY.

Witnesses .loi-1N C. Sinni-inns, F. E. KENNEY.

five' cents each, yby yaddressing the Commissioner of Patents,

Washington,lllCf.y 

